Swift Users:
I’m currently seeing a crash in my iOS app that has no apparent cause,
but a bit of Swift runtime machinery in the stack has me confused.
#0. Crashed: com.apple.main-thread
0 App 0x665ac
Controller.handleOtherNotification(Notification) -> () (Controller.swift:92)
1 libswiftCore.dylib 0x131854f swift_unknownWeakLoadStrong + 10
2 App 0x65cfc Controller.handleFinish(Notification) ->
() (Controller.swift)
3 App 0x65dd8 @objc
Controller.handleNotification(Notification) -> () + 437720
Controller.swift: 92 is a call to a custom UIView subclass method that takes an
optional date contained extracted from the notification. Any idea what the core
callout would be due to? There are no weak or unknown values being used here.
Once the notification observers are called it’s all internal to Controller.
One thing I just noticed is that the line at 3 is the selector for a different
notification, which should lead down the path see from 2 onward. It’s redacted
and so not easy to see, but in Controller, there’s no path that leads from
handleNotification to handleFinish.
Jon
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